If you are on a modern OS (Windows 11/macOS Ventura or later), do not install this . You should instead update to the latest Creative Cloud version of Camera Raw via the Creative Cloud Desktop app.
You are running an older version of Photoshop (CS6, Photoshop CC 2014). You cannot install ACR 9.1.1 on these. You must revert to ACR 8.x or upgrade your Photoshop. Camera Raw 9.1.1 Download
Camera Raw 9.1.1 marks the end of the "Slider-First" era. Today, If you are on a modern OS (Windows
If your computer can handle it, updating to Photoshop CC 2020 (with ACR 12.x) offers modern features like: You cannot install ACR 9
Camera Raw 9.1.1 is notable because it was one of the last iterations accessible to users of the "perpetual" Photoshop CS6. While newer versions were locked behind the CC wall, 9.1.1 offered CS6 users support for newer cameras (like the Nikon D810 and Fuji X-T1) through the DNG converter workaround or direct plug-in updates, provided they were on the correct build of CS6.